I've just begun reading speculative fiction by Jeff Greenfield, If Kennedy Lived. The author developed his story based on what would be plausible given existing facts. It opens with this:
'It's raining, Mr. President.'
'I'm up,' he said to his valet, George Thomas, through the door of the master bedroom of Suite 850, and walked to the window. His hosts had borrowed priceless paintings from local museums--a Monet, a Picasso, a Van Gogh--but eyes were drawn to the gloomy weather, and to a large crowd gathered below: a fitting blend of bad and good news for this trip.
Are you curious about speculative fiction?